Synthesis and properties of acetylene-terminated isoimide and imide oligomers exhibiting excellent solubility behaviors in low boiling point solvents

2017 ◽  
Vol 30 (5) ◽  
pp. 633-640 ◽  
Author(s):  
Chunyan Qu ◽  
Xiang Hou ◽  
Changwei Liu ◽  
Dezhi Wang ◽  
Wanbao Xiao ◽  
...  
Keyword(s):  
Boiling Point ◽  
Imide Oligomers

Inhibition of Radical-Initiated Vinyl Acetate Polymerisation by Tobacco Smoke Fractions

1974 ◽  
Vol 7 (5) ◽  
Author(s):  
M.A. Nisbet ◽  
S. Schmeller
Keyword(s):  
Benzoyl Peroxide ◽  
Vinyl Acetate ◽  
Tobacco Smoke ◽  
Boiling Point ◽  
Water Bath ◽  
Measuring Time ◽  
Time Required

AbstractBoth the vapour and particulate phases of tobacco smoke have been shown to retard benzoyI-peroxide-initiated polymerisation of vinyl acetate by interception of the radicals involved in the polymerisation process. The extent of inhibition of polymerisation by test compounds is estimated by measuring time taken for a mixture of monomer and benzoyl peroxide, immersed in a water-bath at 70°C, to reach a spontaneous boil and comparing it with the time required for a similar mixture with added retarder to reach boiling point. Units are expressed as minutes of inhibition per part per million of inhibitor × 10

HASTELLOY ALLOY D

Alloy Digest ◽  
1956 ◽  
Vol 5 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Physical Properties ◽  
Tensile Properties ◽  
Boiling Point ◽  
Cast Alloy ◽  
Heat Treating

Abstract HASTELLOY ALLOY-D is a cast alloy composed primarily of nickel and silicon, and is exceptionally resistant to sulfuric acid of all concentrations even up to the boiling point. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-29. Producer or source: Haynes Stellite Company.

Isothermal and isobaric vapour-liquid equilibrium data in the tetrachloromethane-sec-butyl alcohol system

1983 ◽  
Vol 48 (9) ◽  
pp. 2446-2453 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Experimental Data ◽  
Boiling Point ◽  
Butyl Alcohol ◽  
Correlation Equations ◽  
Wilson Equation ◽  
Liquid Equilibrium ◽  
Raoult’S Law ◽  
System A ◽  
Equilibrium Data ◽  
Alcohol System

Isothermal vapour-liquid equilibrium data at 65, 73 and 80 °C and isobaric ones at 101.3 kPa were measured in the tetrachloromethane-sec-butyl alcohol system. A modified circulation still of the Gillespie type was used for the measurements. Under the conditions of measurement, the system exhibits positive deviations from Raoult's law and minimum boiling-point azeotropes. The experimental data were fitted to a number of correlation equations, the most suitable being the Wilson equation.

scholarly journals Nanodroplet-mediated catheter-directed sonothrombolysis of retracted blood clots

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Leela Goel ◽  
Huaiyu Wu ◽  
Bohua Zhang ◽  
Jinwook Kim ◽  
Paul A. Dayton ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Negative Pressure ◽  
Boiling Point ◽  
Clot Lysis ◽  
Control Group ◽  
Peak Negative Pressure ◽  
Blood Clots ◽  
Tissue Plasminogen ◽  
First Time

AbstractOne major challenge in current microbubble (MB) and tissue plasminogen activator (tPA)-mediated sonothrombolysis techniques is effectively treating retracted blood clots, owing to the high density and low porosity of retracted clots. Nanodroplets (NDs) have the potential to enhance retracted clot lysis owing to their small size and ability to penetrate into retracted clots to enhance drug delivery. For the first time, we demonstrate that a sub-megahertz, forward-viewing intravascular (FVI) transducer can be used for ND-mediated sonothrombolysis, in vitro. In this study, we determined the minimum peak negative pressure to induce cavitation with low-boiling point phase change nanodroplets and clot lysis. We then compared nanodroplet mediated sonothrombolysis to MB and tPA mediate techniques. The clot lysis as a percent mass decrease in retracted clots was 9 ± 8%, 9 ± 5%, 16 ± 5%, 14 ± 9%, 17 ± 9%, 30 ± 8%, and 40 ± 9% for the control group, tPA alone, tPA + US, MB + US, MB + tPA + US, ND + US, and ND + tPA + US groups, respectively. In retracted blood clots, combined ND- and tPA-mediated sonothrombolysis was able to significantly enhance retracted clot lysis compared with traditional MB and tPA-mediated sonothrombolysis techniques. Combined nanodroplet with tPA-mediated sonothrombolysis may provide a feasible strategy for safely treating retracted clots.

Influence of Fuel Boiling Point on Discharge Characteristics of Superheated Hydrocarbon Liquid Jets

2019 ◽  
Vol 21 (1) ◽  
pp. 186-200
Author(s):  
Young Joon Yoo ◽  
Hyung Ju Lee ◽  
Hojin Choi ◽  
Byunghun Jeong ◽  
Jeongsik Han
Keyword(s):  
Boiling Point ◽  
Liquid Jets ◽  
Discharge Characteristics ◽  
Hydrocarbon Liquid

Preliminary Note on Dietthio and Diethylsulphone derivatives of Succinic Acid

1897 ◽  
Vol 21 ◽  
pp. 156-159
Author(s):  
Crum Brown ◽  
R. Fairbairn
Keyword(s):  
Succinic Acid ◽  
Calcium Chloride ◽  
Boiling Point ◽  
Carbonic Acid ◽  
Steam Bath ◽  
Sodium Bromide ◽  
Absolute Alcohol ◽  
Preliminary Note ◽  
Aqueous Layer ◽  
Derivatives Of

Sodium mercaptide and dibromosuccinic ether, in the proportion of two molecules of the former to one of the latter, were dissolved separately in absolute alcohol, and slowly mixed. A considerable evolution of heat took place, while sodium bromide separated out. The flask was then digested for some hours on the steam-bath. The alcohol was subsequently distilled off, and the residue, on cooling, was treated with water. An oil separated out. This oil was collected by means of a separating funnel, and the aqueous layer several times extracted with ether. The oil and the ethereal extracts were added together and dried over calcium chloride. Next morning the ether was distilled off at the ordinary pressure. The remainder was distilled in vacuo. Between 50° and 60° a few drops came over, which proved to be ethyldisulphide.The remainder came over between 150° and 170°.This latter fraction was redistilled, and a portion of it used for analysis. The boiling point at 20 mm. pressure was 160°.Combustion of dietthiosuccinic ether.Weight of substance taken = ·2477 gram.Weight of carbonic acid obtained = ·4476 gram.Weight of water obtained = ·1702 gram.

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